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2. Standard test method for maximum index density and unit weight of soils using a vibratory table;ASTM D 4253-00,2002
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4. Experimental Soil Mechanics;Bardet,1997
5. Particle shape effects on packing density, stiffness, and strength: natural and crushed sands;Cho;J. Geotech. Geoenviron. Eng., ACSE,2006